Offset printing press

ABSTRACT

An offset printing mechanism including a blanket roll, a plate roll for inking indicia on the blanket roll, a pair of impression rolls cooperating with the blanket roll, and means for directing a web over each impression roll to engage the blanket roll to print the same indicia on both webs, the webs, after leaving the impression rolls, being advanced along separate paths to an assembly station where the webs are assembled with one web overlying the other web, the lengths of the paths being such that the indicia on the assembled webs are in registry.

United States atet {72] Inventor William H. Bedinghaus Wyoming, Ohio [21] Appl. No. 808,968 [22] Filed Mar.20, 1969 [45] Patented Aug. 31,1971 {73] Assignee The Mosler Safe Company New York, NX.

[541 OFFSET PRINTING PRESS 5 Claims, 9 Drawing Figs. I

52 us. C1 270/18, 101/177 [51] Int. Cl 841i 13/64 [50] Field of Search 270/18, 1, 19,4,5,6,52; 101/142, 143, 177,217, 218

[56] References Cited UNITED STATES PATENTS 325,146 8/1885 Anthony 270/18 1,108,162 8/1914 Firm 270/5 1,310,506 7/1919 Scott 270/5 1,925,586 9/1933 Fulk 270/1 2,521,691 9/1950 Corlett 270/18 X 3,334,897 8/1967 Sharkey 1 101/217 X Primary Examiner-Robert W. Michell Assistant Examiner-L. R. Orernland Attorney-Pearce & Schaeperklaus ABSTRACT: An offset printing mechanism including a blanket roll, a plate roll for inking indicia on the blanket roll, a pair of impression rolls cooperating with the blanket roll, and means for directing a web over each impression roll to engage the blanket roll to print the same indicia on both webs, the webs, after leaving the impression rolls, being advanced along 1 separate paths to an assembly station where the webs are assembled with one web overlying the other web, the lengths of the paths being such that the indicia on the assembled webs are in registry.

PATENTED M1831 nan sum 1 up 5 INVENTOR. WILLIAM H.BEDINGHAUS W IJWM Attorneys PATENTEU AUG3I I971 8, 602,493

sum 2 [1F 5 INVENTOR. WILLIAM H.8EDINGHAUS deawi'YS PATENTED M1831 m 3, 02 493 SHEET 3 [IF 5 FIG. 5

FIG. 4

INVENTOR.

WILLIAM H. BEDINGHAUS M n! alf/ PATENTEDAUGSI 15m 3.602.493

SHEET u 0F 5 FIG.9

FlG. 6

INVENTOR.

WHLLIAM H. BEDINGHAUS BYM'MY PATENTEU M1831 l97l SHEET 5 or 5 INVENTOR.

WILLIAM H. BEDI NGHAUS OFFSET PRINTING PRESS This invention relates to offset printing. More particularly, this invention relates to an offset printing mechanism or press for printing manifold webs or the like and to mechanism for assembly of the webs.

In preparing manifold paper sets, it is common to have two or more sheets or webs of paper or the like on which there is identical printing. An object of this invention is to provide a machine which prints identical material on two webs.

A further object of this invention is to provide such a machine which assembles the webs in registry after printing.

A further object of this invention is to provide such a machine in which means is provided for introducing a webof carbon paper between webs on which there is identical print- Briefly, this invention provides a printing press in which there is a plate roll which transfers printing to a blanket roll and in which there is a plurality of impression rolls each of which directs a web into position to receiving printing from the same blanket roll. The blanket and impression rolls are mounted in pivotally supported bearings so that the blanket and impression rolls can be swung longitudinally into and out of operative position. The printed webs leaving the impression rolls travel paths of sufficient length that, when the webs are brought together, the webs are in registry.

The above and other features and objects of this invention will be apparent to those skilled in the art to which this invention pertains from the following detailed description and the drawings, in which:

FIG. 1 is a somewhat schematic view in front elevation of a printing press and web assembling machine constructed in accordance with an embodiment of this invention, some frame elements being omitted for clarity;

FIG. 2 is a plan view of a web directing section of the machine illustrated in FIG. 1, details of other sections being omitted for clarity;

FIG. 3 is a view in front elevation on an enlarged scale of a printing press section of the machine, alternate positions of roll positioning assemblies being shown in dot-dash lines, paths of paper webs being shown in double dot-dash lines;

FIG. 4 is a view in upright section on an enlarged scale of a portion of the printing press section;

FIG. 5 is a fragmentary view in rear elevation of the printing press section;

FIG. 6 is a fragmentary view in section taken on an enlarged scale on the line 66 in FIG. 3;

FIG. 7 is another fragmentary view in section taken on an enlarged scale on the line 45-6 in FIG. 3;

FIG. 8 is a view in section taken on an enlarged scale on the line 88 in FIG. I; and

FIG. 9 is a view in section taken on the line 99 in FIG. 8.

In the following detailed description and the drawings, like reference characters indicate like parts.

In FIG. 1 a printing press and web assembling machine 10 is illustrated somewhat schematically. The machine includes a web-directing section 12, a printing press section 13, and webcorrelating sections 14 and 15.

Webs of paper 17 and 18 (FIG. 2) enter the machine from appropriate rolls (not shown) and pass around angled bars 19 and 21 (FIG. I) to advance into the printing section as web portions 17' and 18' are shown in FIG. 2. A carbon paper web 23 passes around an angled cylindrical bar 24 directly to the correlating section 14.

As shown in FIG. 4, the webs l7 and 18 pass around impression rolls 26 and 27, respectively. Both impression rolls cooperate with a single blanket roll 28 which is engaged by the webs 17 and 18 at successive locations around the periphery thereof to print indicia on the webs, the same indicia being printed on both webs. The blanket roll 28 also engages a plate roll 29. The plate roll is inked by appropriate inking rolls 30 and 31 to which ink is supplied by a train of rolls 32 (FIG. 3) which supply ink from an ink source 34. In addition, water can be supplied to the inking roll 30 by train of rolls 36 which receive water from a water trough 37.

The impression roll 26 is journaled in bearings 38 and 39, which are shown in FIGS. 6 and 7, respectively. The bearing 38 is mounted in a sleeve 41, which is swingably mounted in a transverse bore 42 in front frame plate 43. The outer race of the bearing 38 is received in a socket counterbore 44 in the sleeve '41, which is offcenter thereof so that swinging of the sleeve 41 about its axis causes the bearing 38 to advance crosswise of the bore 42 in the front frame plate 43, with the front end of the axis of the impression roll 26 moving therewith. The sleeve 41 is swung by means of a crank 47 attached thereto by bolts 48. As shown in FIG. 3, one'end of a turnbuckle 48 is pivotally connected to a stud 49 mounted on the crank 47. The other end of the turnbuckle 48' is pivotally connected to a crank 51 (FIG. 3) and to one end of a second turnbuckle 52. The other end of the turnbuckle 52 is pivotally connected to one arm 52 of the belicrank 53, which is pivotally mounted on a stud 54 mounted in the front frame plate 43. The other arm 55 of the bellcrank 53 is pivotally attached to a piston rod 56. The piston rod 56 is actuated by a pneumatic cylinder 57, which is pivotally mounted on an extension 58 of the front frame plate 43. The bellcrank 53 swings between the full line position of FIG. 3, at which a stop 61 limits counterclockwise swinging thereof and a dot-dash line position in which a stop 62 limits clockwise swinging thereof. As the bell crank 53 swings between these positions, the crank 47 swings between the full line position at which the impression roll 26 is in position for engaging the blanket roll 28 and the dot-dash line position (indicated at 47) in which the impression roll 26 is withdrawn therefrom. The stops 61 and 62 can be adjusted and the turnbuckles 48 and 52 can also be adjusted to properly position the inner and outer positions of the impression roll 26.

The crank 51 is mounted on and turns with a shaft 64. As shown in FIG. 5, a crank 66 is also mounted on the shaft 64 behind a rear frame plate 74. The crank 66 is pivotally connected to one end of a turnbuckle 68. The other end of the turnbuckle 68 is pivotally connected to a stud 69 which is mounted on a crank 71. As shown in FIG. 7, the crank 71 is attached to a sleeve 72, which is pivotally mounted in a transverse bore 73 in the rear frame plate 74. The bearing 39 is mounted in a socket counterbore 76 in the sleeve 72, which is offset from the axis thereof so that turning of the crank 71 and of the sleeve 72 causes the bearing 39 and the rear end portion of the axis of the impression roll 26 to move crosswise of the bore 73 in the rear frame plate 74. An end portion 77 of the shaft of the impression roll 26 extends rearwardly through an opening 78 in the crank 71 and carries a gear 79 by means of which the impression roll 26 is rotated. The cranks 47 and 71 are connected to turn together so that the impression roll 26 moves longitudinally without turning of the axis thereof. 1

The impression roll 27 is rotatably supported by an assembly which is generally similar to that already described with reference to the impression roll 26 and which includes cranks 81 (FIG. 3) and 82 (FIG. 5) which carry sleeves 83 (one of which is shown in FIG. 4) in which bearings 84 (one of which is shown in FIG. 4) are mounted offcenter of the sleeves 83. When the cranks 81 and 82 and the sleeves 83 are turned, the axis of the impression roll 27 is shifted longitudinally of its axis. The cranks 81 and 82 can be swung between the full line positions and the dot-dash line positions indicated at 81' (FIG. 3) and 82 (FIG. 5), respectively. The cranks 81 and 82 are linked by turnbuckles 86 (FIG. 3) and 87 (FIG. 5), respectively, to cranks 88 (FIG. 3) and 89 (FIG. 5), respectively. The cranks 88 and 89 are mounted on a shaft 91 which also carries a gear 92 (FIG. 3). The gear 92 meshes with a gear 93 carried by a shaft 94 rotatably mounted in a bracket 96 carried on the front of the front face plate 43. A square head 96' on the shaft 94 can be engaged by a wrench (not shown) for turning the shaft 94 and the gears 93 and 92 to swing the cranks 81, 82, 88 and 89 between the position at which the cranks 81 and 82 are shown in full lines and the impression roll 27 is in operative position and the position in which these cranks are shown in dot-dash lines at 81 and 82' in which the impression roll 27 is withdrawn from the blanket roll 28.

A gear 98, shown in FIG. 5, is mounted on the impression roll 27. The gears 98 and 79 mesh with a gear 101 mounted on the blanket roll 28.

The blanket roll 28 is rotatably supported by an assembly which is generally similar to the assemblies which support the impression rolls and have already been described, the assembly which supports the blanket roll 28 including cranks 102 (FIG. 3) and 103 (FIG. which carry sleeves 104 (one of which is shown in FIG. 4) in which bearings 106 (one of which is shown in FIG. 4) are mounted offcenter of the sleeves 104. When the cranks 102 and 103 and the sleeves 104 are turned, the axis of the blanket roll 28 is shifted longitudinally. The cranks 102 and 103 are pivotally connected to piston rods 107 (FIG. 3) and 108 (FIG. 5), respectively, which are activated by pneumatic cylinders 109 and 111, respectively, the cylinder 109 being pivotally mounted on the front face of the front frame plate 43 upon a stud 112, the cylinder 111 being similarly pivotally supported upon the rear frame plate 74 on a stud 113. Stops 116 and 117 (FIG. 3) mounted on the front frame plate 43 and stops 118 and 119 mounted on the rear frame plate 74 limit swinging of the cranks 102 and 103 so the cranks can swing between the full line position in which the blanket roll 28 is in engagement with the plate roll 29 and a released position withdrawn therefrom.

The plate roll 29 carries a gear 121 (FIG. 5) which meshes with the gear 101 on the blanket roll. A gear 122 meshes with the gear 121. The gear 122 is driven by an appropriate chain of gears and a power source (not shown) to drive the plate roll, the blanket roll, and the impression rolls. Appropriate drives (not shown) are also provided for the rolls which deliver ink and water to the plate roll 29 (FIG. 4). Material on the blanket roll 28 is inked by the plate roll 29, and the material is printed on both of the webs 17 and 18 as the webs pass over the impression rolls 26 and 27, respectively, and engage the blanket roll 28. From the impression rolls 26 and 27, the webs pass to the web correlating sections 14 and (FIG. 1). The web 18 passes over a roll 123 and advances to a web adjusting assembly 124 which is shown in detail in FIGS. 8 and 9. The assembly 124 includes a roll 126 around which the web 18 passes. The roll 126 is rotatably mounted on a shaft 127. The shaft 127 is mounted in a swinging bar 128 adjacent one end thereof. The bar 128, in turn, is mounted on a shaft 129, which is rotatably mounted in a front face plate 131. The shaft 129 carries a worm wheel 132 which meshes with a worm 133. The worm 133 is carried by a shaft 134 which is rotatably mounted in bearings 136 and 137 mounted in brackets 138 and 139, respectively, which are attached to the front frame plate 131. A handle 140 mounted on the shaft 134 can be turned to turn the worm 133, the worm wheel 132, and the shaft 129 to swing the swinging bar 128, the shaft 127 and the roll 126 up or down to vary the effective length of the path of the web 18. The free end of the shaft 127 is carried by a bar 141 which is mounted on a stub shaft 141' pivotally mounted in a rear frame plate 146. From the web-adjusting assembly 124, the web 18 passes through the web-correlating section 14 and around a roll 143 to the web-correlating section 15. The roll 143 and other rolls between the sections 14 and 15 are shown schematically and are mounted on appropriate bearings mounted in an extension of the rear frame plate 146 (FIG. 2) details of which have been omitted from FIG. 1 for clarity of the showing of parts. From the roll 143, the web 18 passes through the web-correlating section 15 and then around a roll 147 to a roll 148, which forms a web assembly station and where the web 18 is assembled with the web 17 and with the carbon paper web 23 with the web 17 overlying The carbon paper web 23 passes through the web-correlating section 14 and around rolls 149 and 151. At the roll 151, the carbon paper web 23 is assembled with the web 17. From the roll 151, the webs 23 and 17 travel together to the roll 148 where they are assembled with the web 18.

The web 17, after leaving the printing press section 13, travels over a roller 153 in the web-correlating section 14 to a web-adjusting assembly 154, which is similar in construction to the web-adjusting assembly already described and includes a handle 155 and shaft 156 by means of which a worm 157 and worm wheel 158 can be turned for swinging up and down the axis of a roll 159 over which the web 17 passes to vary the effective length of the path of the web 17 From the web-adjusting assembly 154, the web 17 passes through the web-correlating section 14 and around rolls 161 and 162 to the roll 151 where the carbon paper web 23 is assembled therewith.

In the printing press section of the machine, identical material or indicia is printed on both of the webs 17 and 18 because both webs are brought into engagement with the same blanket roll 28 (FIG. 4). From the printing press section the webs 17 and 18 travel differing paths as shown in FIG. 1 with the effective lengths of the paths being variable so that, when the webs 17 and 18 are assembled together and with the carbon paper web, the webs l7 and 18 can be brought into registry.

The printing press and manifold assembling machine described above and illustrated in the drawings is subject to structural modification without departing from the spirit and scope of the appended claims. 7

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. An offset printing mechanism which comprises a blanket roll, a single plate roll for inking indicia on the blanket roll, a pair of impression rolls cooperating with the blanket roll, and means for directing a web over each impression roll to engage the blanket roll to print the same indicia on both webs, impressions on both webs being derived from a single inking of indicia on the blanket roll, the indicia inked on the blanket roll by the plate roll being successively printed on the two webs before re-inking of the indicia is effected by the plate roll.

2. An offset printing mechanism as in claim 1 wherein the webs, after leaving the impression rolls, are advanced along separate paths to an assembly station where one of the webs is directed into overlying stacked relation with respect to the other of the webs, the lengths of the paths being such that the indicia on assembled webs leaving the assembly station are in registry.

3. An offset printing mechanism as in claim 2 wherein means is provided along the path of one of the webs between the impression roll associated therewith and the assembly station for adjusting the length of the path for directing the webs into registry.

4. An offset printing mechanism as in claim 2 wherein a carbon paper web is assembled between the printed webs as the webs are assembled at the assembly station.

5. An offset printing mechanism as in claim 1 wherein both impression rolls are mounted in bearings which are movable transversely of the axes of the impression rolls so that the impression rolls are advanceable into and out of operative position at which webs directed over the impression rolls engage the blanket roll and the blanket roll is mounted in bearings which are movable transversely of the axis of the blanket roll so that the blanket roll is advanceable into and out of operative position engaging the plate roll when released by the impression rolls. 

1. An offset printing mechanism which comprises a blanket roll, a single plate roll for inking indicia on the blanket roll, a pair of impression rolls cooperating with the blanket roll, and means for directing a web over each impression roll to engage the blanket roll to print the same indicia on both webs, impressions on both webs being derived from a single inking of indicia on the blanket roll, the indicia inkEd on the blanket roll by the plate roll being successively printed on the two webs before re-inking of the indicia is effected by the plate roll.
 2. An offset printing mechanism as in claim 1 wherein the webs, after leaving the impression rolls, are advanced along separate paths to an assembly station where one of the webs is directed into overlying stacked relation with respect to the other of the webs, the lengths of the paths being such that the indicia on assembled webs leaving the assembly station are in registry.
 3. An offset printing mechanism as in claim 2 wherein means is provided along the path of one of the webs between the impression roll associated therewith and the assembly station for adjusting the length of the path for directing the webs into registry.
 4. An offset printing mechanism as in claim 2 wherein a carbon paper web is assembled between the printed webs as the webs are assembled at the assembly station.
 5. An offset printing mechanism as in claim 1 wherein both impression rolls are mounted in bearings which are movable transversely of the axes of the impression rolls so that the impression rolls are advanceable into and out of operative position at which webs directed over the impression rolls engage the blanket roll and the blanket roll is mounted in bearings which are movable transversely of the axis of the blanket roll so that the blanket roll is advanceable into and out of operative position engaging the plate roll when released by the impression rolls. 